Sicyon, an ancient Greek city-state in northern Peloponnesus, was located between Corinth and Achaea. Initially a monarchy during the Trojan War, it saw various tyrants rule during the Archaic and Classical periods, transitioning to a democracy in the 3rd century BC. Known for its artistic contributions, Sicyon produced renowned painters and sculptors and was home to Aratus of Sicyon, leader of the Achaean League.
After the Dark Ages, Sicyon was a Dorian city and part of the kingdom of Argos.In c. 676 BCE, Orthagoras became tyrant (sole ruler) of Sicyon and made the city independent. The Orthagorids ruled for well over a century. In the mid-sixth century, the city became part of the Peloponnesian League and fought in the Persian War (480-479) against the invaders. Sicyon remained loyal to Sparta, which protected the city's independence against nearby Corinth. During the First Peloponnesian War (460-445) between Athens and Sparta, the Athenians attacked Sicyon twice, their trieres having sailed all around the Peloponnese. When Sparta collapsed after the battle of Leuctra, Sicyon was occupied by Thebes. The city was part of the Corinthian League; the town had a Macedonian garrison that would eventually side with Ptolemy I Soter, the colonel of Alexander the Great who had started a kingdom in Egypt. In 303, however, the city was captured by Demetrius Poliorcetes, and would belong to the Antigonid realms for several decads. The theater was built in these years.
Sicyon regained its independence during the Chremonidian War (267-261). In 251, Aratus of Sicyon seized the city, stabilized its democratic government, and founded the Achaean League; in 243 BCE, he captured the Acrocorinth and convinced Corinth to join the league. The league would last until the Romans subdued Achaea in 146 BCE. During the Roman conquest, Corinth was sacked; Sicyon was now president of the Isthmian Games.After the refoundation of Corinth and heavy Roman investments in Patras, Sicyon was eclipsed and almost abandoned.
Today Sicyon contains remains of many ancient temples and theatre.
References:The ancient Argos Theater was built in 320 BC. and is located in Argos, Greece against Larissa Hill. Nearby from this site is Agora, Roman Odeon, and the Baths of Argos. The theater is one of the largest architectural developments in Greece and was renovated in ca 120 AD.
The Hellenistic theater at Argos is cut into the hillside of the Larisa, with 90 steps up a steep incline, forming a narrow rectilinear cavea. Among the largest theaters in Greece, it held about 20,000 spectators and is divided by two landings into three horizontal sections. Staircases further divide the cavea into four cunei, corresponding to the tribes of Argos A high wall was erected to prevent unauthorized access into the theatron and may have helped the acoustics, but it is said the sound quality is still very good today.
Around 120 CE, both theaters were renovated in the Roman style.